Tempest's AA471, as the name suggests, is an oil filter media cutter. As mechanics can attest, it's important to cut the media open to spread the pleats for inspection of metal in the filter. Previously, this was a difficult task. Not anymore. With a strong guard and non-retractable blade to secure the media and ensure an accurate cut, this item simplifies the process. AA471 offers a cost-effective, efficient as well as safe means of cutting media.